To Do Sunday: Take in the Trees

Spend your weekend outdoors, and impress your friends with your newfound nature knowledge. Writer and photographer Benjamin Swett brings his book, New York City of Trees, in which he brings“how much of the life of New York is contained in its trees” to life with an illustrated talk sponsored by the Battery Park City Parks Conservancy, followed by a walk exploring some of the introduced species of trees in Battery Park City.

6 River Terrace, south end of River Terrace, north of the Irish Hunger Memorial, 212-267-9700 ext. 366, 2 p.m., free